diff options
| -rw-r--r-- | libc/sysdeps/linux/arc/sigaction.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/libc/sysdeps/linux/arc/sigaction.c b/libc/sysdeps/linux/arc/sigaction.c index 73c496d2a..a34c7cf4c 100644 --- a/libc/sysdeps/linux/arc/sigaction.c +++ b/libc/sysdeps/linux/arc/sigaction.c @@ -22,8 +22,9 @@ __libc_sigaction (int sig, const struct sigaction *act, struct sigaction *oact) { struct sigaction kact; - /* !act means caller only wants to know @oact - * Hence only otherwise, do SA_RESTORER stuff + /* + * SA_RESTORER is only relevant for act != NULL case + * (!act means caller only wants to know @oact) * * For the normal/default cases (user not providing SA_RESTORER) use * a real sigreturn stub to avoid kernel synthesizing one on user stack @@ -31,9 +32,11 @@ __libc_sigaction (int sig, const struct sigaction *act, struct sigaction *oact) * update) and costly cache line flushes for code modification */ if (act && !(act->sa_flags & SA_RESTORER)) { - memcpy(&kact, act, sizeof(kact)); kact.sa_restorer = __default_rt_sa_restorer; - kact.sa_flags |= SA_RESTORER; + kact.sa_flags = act->sa_flags | SA_RESTORER; + + kact.sa_handler = act->sa_handler; + kact.sa_mask = act->sa_mask; act = &kact; } |